package com.practices2.util;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

public class LocationUtil {
	
	
//	需要增加权限：
//
//	<uses-permission
//	android:name="android.permission.ACCESS_FINE_LOCATION" />
//
//	<uses-permission 
//	android:name="android.permission.ACCESS_COARSE_LOCATION" />
	
	public static boolean isEnabled(Context context) {
		LocationManager mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
		if (mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
			return true;
		}
		if (mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
			return true;
		}
		return false;
	}

	public static void startLocationService(Context context) {
		LocationManager mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

		mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 10, mLocationListener);
		mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000L, 10, mLocationListener);
	}

	public static void stopLocationService(Context context) {
		LocationManager mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
		mLocationManager.removeUpdates(mLocationListener);
	}

	public static Location getLocationByGPS(Context context) {
		LocationManager mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
		Location location = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
		return location;
	}

	public static Location getLocationByNetwork(Context context) {
		LocationManager mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
		Location location = mLocationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
		return location;
	}

	public static void openLocationSetting(Activity act, int requestCode) {
		// act.startActivityForResult(new
		// Intent(ACTION_LOCATION_SOURCE_SETTINGS), requestCode);

	}

	private static final LocationListener mLocationListener = new LocationListener() {

		public void onLocationChanged(Location location) {
			// 当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
			System.out.println("onLocationChanged:" + location.getLatitude());
		}

		public void onProviderDisabled(String provider) {
			// Provider被disable时触发此函数，比如GPS被关闭
			System.out.println("onProviderDisabled:" + provider);
		}

		public void onProviderEnabled(String provider) {
			// Provider被enable时触发此函数，比如GPS被打开
			System.out.println("onProviderEnabled:" + provider);
		}

		public void onStatusChanged(String provider, int status, Bundle extras) {
			// Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
			System.out.println("onStatusChanged:" + status);
		}
	};
}
